A perpetual calendar, with its union of the practical and the poetic, is the ultimate expression of elegance and sophistication for the modern gentleman. This year Chopard is presenting its celebrated perpetual calendar, the chronometer-certified L.U.C Perpetual Twin, in a stand-out version in Lucent Steel™ with a blue dial that offer gentleman connoisseurs a new expression of artful style and horological finesse.

Case & Dial
Metal	stainless steel
Case Diameter	43
Thickness	11.47 mm
Dial	in a blue colour obtained by galvanic treatment - satin-brushed sunburst finish centred on the date - rhodium-plated hour markers
Water-Resistant	30 metres
Case-Back	see-through sapphire crystal
Crown Material	stainless steel
Front Glass	glareproofed scratch-resistant sapphire crystal
Movement
Movement	L.U.C 96.22-L
Type of Winding	self-winding mechanical movement
Function	small seconds, date, hours and minutes
Complications	perpetual calendar
Power Reserve	Power Reserve of approximately 65 hours, L.U.C Twin Technology (two stacked barrels)
Certification(s)	Certified chronometer (COSC)
Frequency	4 Hz (28,800 vibrations per hour)
Decoration on Movement	bridges adorned with Côtes de Genève, circular-grained mainplate
Balance Spring	flat
Balance Wheel	with three spokes
Movement Dimensions	Ø 33.00 mm
Movement Thickness	6.00 mm
Number of Movement Parts	300
Jewels	29
Strap & Buckle
Buckle Type	pin buckle
Buckle Material	stainless steel
Strap	blue calfskin (nubuck effect) with hand sewn matching tones